From eye exams to blood tests and surgery: how doctors use light to diagnose disease
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This is the next article in our ‘Light and health’ series, where we look at how light affects our physical and mental health in sometimes surprising ways. Read other articles in the series.
You’re not feeling well. You’ve had a pounding headache all week, dizzy spells and have vomited up your past few meals.
You visit your GP to get some answers and sit while they shine a light in your eyes, order a blood test and request some medical imaging.
Everything your GP just did relies on light. These are just some of the optical technologies that have had an enormous impact in how we diagnose disease.
1. On-the-spot tests
Point-of-care diagnostics allow doctors to test patients on the spot and get answers in minutes, rather than sending samples to a lab for analysis.
The “flashlight” your GP uses to view the inside of your eye (known as an ophthalmoscope) is a great example. This allows doctors to detect abnormal blood flow in the eye, deformations of the cornea (the outermost clear layer of the eye), or swollen optical discs (a round section at the back of the eye where the nerve link to the brain begins). Swollen discs are a sign of elevated pressure inside your head (or in the worst case, a brain tumour) that could be causing your headaches.
The invention of lasers and LEDs has enabled many other miniaturised technologies to be provided at the bedside or clinic rather than in the lab.
Pulse oximetry is a famous example, where a clip attached to your finger reports how well your blood is oxygenated. It does this by measuring the different responses of oxygenated and de-oxygenated blood to different colours of light.
Pulse oximetry is used at hospitals (and sometimes at home) to monitor your respiratory and heart health. In hospitals, it is also a valuable tool for detecting heart defects in babies.
2. Looking at molecules
Now, back to that blood test. Analysing a small amount of your blood can diagnose many different diseases.
A machine called an automated “full blood count analyser” tests for general markers of your health. This machine directs focused beams of light through blood samples held in small glass tubes. It counts the number of blood cells, determines their specific type, and reports the level of haemoglobin (the protein in red blood cells that distributes oxygen around your body). In minutes, this machine can provide a snapshot of your overall health.
For more specific disease markers, blood serum is separated from the heavier cells by spinning in a rotating instrument called a centrifuge. The serum is then exposed to special chemical stains and enzyme assays that change colour depending on whether specific molecules, which may be the sign of a disease, are present.
These colour changes can’t be detected with the naked eye. However, a light beam from an instrument called a spectrometer can detect tiny amounts of these substances in the blood and determine if the biomarkers for diseases are present, and at what levels.
3. Medical imaging
Let’s re-visit those medical images your GP ordered. The development of fibre-optic technology, made famous for transforming high-speed digital communications (such as the NBN), allows light to get inside the body. The result? High-resolution optical imaging.
A common example is an endoscope, where fibres with a tiny camera on the end are inserted into the body’s natural openings (such as your mouth or anus) to examine your gut or respiratory tracts.
Surgeons can insert the same technology through tiny cuts to view the inside of the body on a video screen during laparoscopic surgery (also known as keyhole surgery) to diagnose and treat disease.
How about the future?
Progress in nanotechnology and a better understanding of the interactions of light with our tissues are leading to new light-based tools to help diagnose disease. These include:
- nanomaterials (materials on an extremely small scale, many thousands of times smaller than the width of a human hair). These are being used in next-generation sensors and new diagnostic tests
- wearable optical biosensors the size of your fingernail can be included in devices such as watches, contact lenses or finger wraps. These devices allow non-invasive measurements of sweat, tears and saliva, in real time
- AI tools to analyse how blood serum scatters infrared light. This has allowed researchers to build a comprehensive database of scatter patterns to detect any cancer
- a type of non-invasive imaging called optical coherence tomography for more detailed imaging of the eye, heart and skin
- fibre optic technology to deliver a tiny microscope into the body on the tip of a needle.
So the next time you’re at the GP and they perform (or order) some tests, chances are that at least one of those tests depend on light to help diagnose disease.
Matthew Griffith, Associate Professor and ARC Future Fellow and Director, UniSA Microscopy and Microanalysis Facilities, University of South Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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For Seniors With Hoarding Disorder, a Support Group Helps Confront Stigma and Isolation
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A dozen people seated around folding tables clap heartily for a beaming woman: She’s donated two 13-gallon garbage bags full of clothes, including several Christmas sweaters and a couple of pantsuits, to a Presbyterian church.
A closet cleanout might not seem a significant accomplishment. But as the people in this Sunday-night class can attest, getting rid of stuff is agonizing for those with hoarding disorder.
People with the diagnosis accumulate an excessive volume of things such as household goods, craft supplies, even pets. In extreme cases, their homes become so crammed that moving between rooms is possible only via narrow pathways.
These unsafe conditions can also lead to strained relationships.
“I’ve had a few relatives and friends that have condemned me, and it doesn’t help,” said Bernadette, a Pennsylvania woman in her early 70s who has struggled with hoarding since retiring and no longer allows guests in her home.
People who hoard are often stigmatized as lazy or dirty. NPR, Spotlight PA, and KFF Health News agreed to use only the first names of people with hoarding disorder interviewed for this article because they fear personal and professional repercussions if their condition is made public.
As baby boomers age into the group most affected by hoarding disorder, the psychiatric condition is a growing public health concern. Effective treatments are scarce. And because hoarding can require expensive interventions that drain municipal resources, more funding and expertise is needed to support those with the diagnosis before the issue grows into a crisis.
For Bernadette, the 16-week course is helping her turn over a new leaf.
The program doubles as a support group and is provided through Fight the Blight. The Westmoreland County, Pennsylvania, organization started offering the course at a local Masonic temple after founder Matt Williams realized the area lacked hoarding-specific mental health services.
Fight the Blight uses a curriculum based on cognitive behavioral therapy to help participants build awareness of what fuels their hoarding. People learn to be more thoughtful about what they purchase and save, and they create strategies so that decluttering doesn’t become overwhelming.
Perhaps more importantly, attendees say they’ve formed a community knitted together through the shared experience of a psychiatric illness that comes with high rates of social isolation and depression.
“You get friendship,” said Sanford, a classmate of Bernadette’s.
After a lifetime of judgment, these friendships have become an integral part of the changes that might help participants eventually clear out the clutter.
Clutter Catches Up to Baby Boomers
Studies have estimated that hoarding disorder affects around 2.5% of the general population — a higher rate than schizophrenia.
The mental illness was previously considered a subtype of obsessive-compulsive disorder, but in 2013 it was given its own diagnostic criteria in the Diagnostic and Statistical Manual of Mental Disorders, the DSM-5.
The biological and environmental factors that may drive hoarding are not well understood. Symptoms usually appear during the teenage years and tend to be more severe among older adults with the disorder. That’s partly because they have had more time to acquire things, said Kiara Timpano, a University of Miami psychology professor.
“All of a sudden you have to downsize this huge home with all the stuff and so it puts pressures on individuals,” she said. In Bernadette’s case, her clutter includes a collection of VHS tapes, and spices in her kitchen that she said date back to the Clinton administration.
But it’s more than just having decades to stockpile possessions; the urge to accumulate strengthens with age, according to Catherine Ayers, a psychiatry professor at the University of California-San Diego.
Researchers are working to discern why. Ayers and Timpano theorize that age-related cognitive changes — particularly in the frontal lobe, which regulates impulsivity and problem-solving — might exacerbate the disorder.
“It is the only mental health disorder, besides dementia, that increases in prevalence and severity with age,” Ayers said.
As the U.S. population ages, hoarding presents a growing public health concern: Some 1 in 5 U.S. residents are baby boomers, all of whom will be 65 or older by 2030.
This population shift will require the federal government to address hoarding disorder, among other age-related issues that it has not previously prioritized, according to a July report by the Democratic staff of the U.S. Senate Special Committee on Aging, chaired then by former Sen. Bob Casey (D-Pa.).
Health Hazards of Hoarding
Clutter creates physical risks. A cramped and disorderly home is especially dangerous for older adults because the risk of falling and breaking a bone increases with age. And having too many things in one space can be a fire hazard.
Last year, the National Fallen Firefighters Foundation wrote to the Senate committee’s leadership that “hoarding conditions are among the most dangerous conditions the fire service can encounter.” The group also said that cluttered homes delay emergency care and increase the likelihood of a first responder being injured on a call.
The Bucks County Board of Commissioners in Pennsylvania told Casey that hoarding-related mold and insects can spread to adjacent households, endangering the health of neighbors.
Due to these safety concerns, it might be tempting for a family member or public health agency to quickly empty someone’s home in one fell swoop.
That can backfire, Timpano said, as it fails to address people’s underlying issues and can be traumatic.
“It can really disrupt the trust and make it even less likely that the individual is willing to seek help in the future,” she said.
It’s more effective, Timpano said, to help people build internal motivation to change and help them identify goals to manage their hoarding.
For example, at the Fight the Blight class, a woman named Diane told the group she wanted a cleaner home so she could invite people over and not feel embarrassed.
Sanford said he is learning to keep his documents and record collection more organized.
Bernadette wants to declutter her bedroom so she can start sleeping in it again. Also, she’s glad she cleared enough space on the first floor for her cat to play.
“Because now he’s got all this room,” she said, “he goes after his tail like a crazy person.”
Ultimately, the home of someone with hoarding disorder might always be a bit cluttered, and that’s OK. The goal of treatment is to make the space healthy and safe, Timpano said, not to earn Marie Kondo’s approval.
Lack of Treatment Leaves Few Options
A 2020 study found that hoarding correlates with homelessness, and those with the disorder are more likely to be evicted.
Housing advocates argue that under the Fair Housing Act, tenants with the diagnosis are entitled to reasonable accommodation. This might include allowing someone time to declutter a home and seek therapy before forcing them to leave their home.
But as outlined in the Senate aging committee’s report, a lack of resources limits efforts to carry out these accommodations.
Hoarding is difficult to treat. In a 2018 study led by Ayers, the UCSD psychiatrist, researchers found that people coping with hoarding need to be highly motivated and often require substantial support to remain engaged with their therapy.
The challenge of sticking with a treatment plan is exacerbated by a shortage of clinicians with necessary expertise, said Janet Spinelli, the co-chair of Rhode Island’s hoarding task force.
Could Changes to Federal Policy Help?
Casey, the former Pennsylvania senator, advocated for more education and technical assistance for hoarding disorder.
In September, he called for the Substance Abuse and Mental Health Services Administration to develop training, assistance, and guidance for communities and clinicians. He also said the Centers for Medicare & Medicaid Services should explore ways to cover evidence-based treatments and services for hoarding.
This might include increased Medicare funding for mobile crisis services to go to people’s homes, which is one way to connect someone to therapy, Spinelli said.
Another strategy would involve allowing Medicaid and Medicare to reimburse community health workers who assist patients with light cleaning and organizing; research has found that many who hoard struggle with categorization tasks.
Williams, of Fight the Blight, agrees that in addition to more mental health support, taxpayer-funded services are needed to help people address their clutter.
When someone in the group reaches a point of wanting to declutter their home, Fight the Blight helps them start the process of cleaning, removing, and organizing.
The service is free to those earning less than 150% of the federal poverty level. People making above that threshold can pay for assistance on a sliding scale; the cost varies also depending on the size of a property and severity of the hoarding.
Also, Spinelli thinks Medicaid and Medicare should fund more peer-support specialists for hoarding disorder. These mental health workers draw on their own life experiences to help people with similar diagnoses. For example, peer counselors could lead classes like Fight the Blight’s.
Bernadette and Sanford say courses like the one they enrolled in should be available all over the U.S.
To those just starting to address their own hoarding, Sanford advises patience and persistence.
“Even if it’s a little job here, a little job there,” he said, “that all adds up.”
This article is from a partnership that includes Spotlight PA, NPR, and KFF Health News.
Spotlight PA is an independent, nonpartisan, and nonprofit newsroom producing investigative and public-service journalism that holds power to account and drives positive change in Pennsylvania. Sign up for its free newsletters.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.
Subscribe to KFF Health News’ free Morning Briefing.
This article first appeared on KFF Health News and is republished here under a Creative Commons license.
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Pregnant women can now get a free RSV shot. What other vaccines do you need when you’re expecting?
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From today, February 3, pregnant women in Australia will be eligible for a free RSV vaccine under the National Immunisation Program.
This vaccine is designed to protect young infants from severe RSV (respiratory syncytial virus). It does so by generating the production of antibodies against RSV in the mother, which then travel across the placenta to the baby.
While the RSV vaccine is a new addition to the National Immunisation Program, it’s one of three vaccines provided free for pregnant women under the program, alongside ones for influenza and whooping cough. Each offers important protection for newborn babies.
voronaman/Shutterstock The RSV vaccine
RSV is the most common cause of lower respiratory infections (bronchiolitis and pneumonia) in infants. It’s estimated that of every 100 infants born in Australia each year, at least two will be hospitalised with RSV by six months of age.
RSV infection is most common roughly between March and August in the southern hemisphere, but infection can occur year-round, especially in tropical areas.
The vaccine works by conferring passive immunity (from the mother) as opposed to active immunity (the baby’s own immune response). By the time the baby is born, their antibodies are sufficient to protect them during the first months of life when they are most vulnerable to severe RSV disease.
The RSV vaccine registered for use in pregnant women in Australia, Abrysvo, has been used since 2023 in the Americas and Europe. Real-world experience there shows it’s working well.
For example, over the 2024 RSV season in Argentina, it was found to prevent 72.7% of lower respiratory tract infections caused by RSV and requiring hospitalisation in infants aged 0–3 months, and 68% among those aged 0–6 months. This research noted three deaths from RSV, all in infants whose mothers did not receive the RSV vaccine during pregnancy.
This was similar to protection seen in a large multinational clinical trial that compared babies born to mothers who received this RSV vaccine with babies born to mothers who received a placebo. This study found the vaccine prevented 82.4% of severe cases of RSV in infants aged under three months, and 70% under six months, and that the vaccine was safe.
Vaccinating mothers during pregnancy protects the newborn baby. StoryTime Studio/Shutterstock In addition to the maternal vaccine, nirsevimab, a long-acting monoclonal antibody, provides effective protection against severe RSV disease. It’s delivered to the baby by an intramuscular injection, usually in the thigh.
Nirsevimab is recommended for babies born to women who did not receive an RSV vaccine during pregnancy, or who are born within two weeks of their mother having received the shot (most likely if they’re born prematurely). It may also be recommended for babies who are at higher risk of RSV due to a medical condition, even if their mother was vaccinated.
Nirsevimab is not funded under the National Immunisation Program, but is covered under various state and territory-based programs for infants of mothers who fall into the above categories.
But now we have a safe and effective RSV vaccine for pregnancy, all pregnant women should be encouraged to receive it as the first line of prevention. This will maximise the number of babies protected during their first months of life.
Flu and whooping cough
It’s also important pregnant women continue to receive flu and whooping cough vaccines in 2025. Like the RSV vaccine, these protect infants by passing antibodies from mother to baby.
There has been a large whooping cough outbreak in Australia in recent months, including a death of a two-month-old infant in Queensland in November 2024.
The whooping cough vaccine, given in combination with diphtheria and tetanus, prevents more than 90% of whooping cough cases in babies too young to receive their first whooping cough vaccine dose.
Similarly, influenza can be deadly in young babies, and maternal flu vaccination substantially reduces hospital visits associated with influenza for babies under six months. Flu can also be serious for pregnant women, so the vaccine offers important protection for the mother as well.
COVID vaccines are safe in pregnancy, but unless a woman is otherwise eligible, they’re not routinely recommended. You can discuss this with your health-care provider.
When and where can you get vaccinated?
Pregnant women can receive these vaccines during antenatal visits through their GP or in a specialised antenatal clinic.
The flu vaccine is recommended at any time during pregnancy, the whooping cough vaccine from 20 weeks (ideally before 32 weeks), and the RSV vaccine from 28 weeks (before 36 weeks).
It’s safe to receive multiple vaccinations at the same clinic visit.
The RSV vaccine is now available for pregnant women under the National Immunisation Program. Olga Rolenko/Shutterstock We know vaccination rates have declined in a variety of groups since the pandemic, and there’s evidence emerging that suggests this trend has occurred in pregnant women too.
A recent preprint (a study yet to be peer-reviewed) found a decrease of nearly ten percentage points in flu vaccine coverage among pregnant women in New South Wales, from 58.8% in 2020 to 49.1% in 2022. The research showed a smaller drop of 1.4 percentage points for whooping cough, from 79% in 2020 to 77.6% in 2022.
It’s important to work to improve vaccination rates during pregnancy to give babies the best protection in their first months of life.
We know pregnant women would like to receive information about new and routine maternal vaccines early in pregnancy. In particular, many pregnant women want to understand how vaccines are tested for safety, and their effectiveness, which was evident during COVID.
GPs and midwives are trusted sources of information on vaccines in pregnancy. There’s also information available online on Sharing Knowledge About Immunisation, a collaboration led by the National Centre for Immunisation Research and Surveillance.
Archana Koirala, Paediatrician and Infectious Diseases Specialist, University of Sydney; Bianca Middleton, Senior Research Fellow, Menzies School of Health Research; Margie Danchin, Professor of Paediatrics and vaccinologist, Royal Childrens Hospital, University of Melbourne and Murdoch Childrens Research Institute (MCRI); Associate Dean International, University of Melbourne, Murdoch Children’s Research Institute; Peter McIntyre, Professor in Women’s and Children’s Health, University of Otago, and Rebecca Doyle, Adjunct Research Fellow, School of Nursing, Midwifery and Social Work, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Working Smarter < Working Brighter!
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When it comes to working smarter, not harder, there’s plenty of advice and honestly, it’s mostly quite sensible. For example:
(Nice to see they featured a method we talked about last week—great minds!)
But, as standards of productivity rise, the goalposts get moved too, and the treadmill just keeps on going…
- 49% of entrepreneurs say they’ve struggled with some kind of mental illness
- Millennial women are one of the workforce groups at the highest risk of anxiety
- About 7 in 10 millennials experience burnout at work
Not that these things are confined to Millennials, by any stretch, but Millennials make up a huge portion of working people. Ideally, this age group should be able to bring the best of both worlds to the workplace by combining years of experience with youthful energy.
So clearly something is going wrong; the question is: what can be done about it?
Workers of the World, Unwind
A knee-jerk response might be “work to rule”—a tactic long-used by disgruntled exploited workers to do no more than the absolute minimum required to not get fired. And it’s arguably better for them than breaking themselves at work, but that’s not exactly enriching, is it?
This is Brittany Berger, founder of “Work Brighter”.
She’s a content marketing consultant, mental health advocate, and (in her words) a highly ridiculous human who always has a pop culture reference at the ready.
What, besides pop culture references, is she bringing to the table? What is Working Brighter?
❝Working brighter means going beyond generic “work smarter” advice on the internet and personalizing it to work FOR YOU. It means creating your own routines for work, productivity, and self-care.❞
Brittany Berger
Examples of working brighter include…
Asking:
- What would your work involve, if it were more fun?
- How can you make your work more comfortable for you?
- What changes could you make that would make your work more sustainable (i.e., to avoid burnout)?
Remembering:
- Mental health is just health
- Self-care is a “soft skill”
- Rest is work when it’s needed
This is not one of those “what workers really want is not more pay, it’s beanbags” things, by the way (but if you want a beanbag, then by all means, get yourself a beanbag).
It’s about making time to rest, it’s about having the things that make you feel good while you’re working, and making sure you can enjoy working. You’re going to spend a lot of your life doing it; you might as well enjoy it.
❝Nobody goes to their deathbed wishing they’d spent more time at the office❞
Anon
On the contrary, having worked too hard is one of the top reported regrets of the dying!
Article: The Top Five Regrets Of The Dying
And no, they don’t wish they’d “worked smarter, not harder”. They wish (also in the above list, in fact) that they’d had the courage to live a life more true to themselves.
You can do that in your work. Whatever your work is. And if your work doesn’t permit that (be it the evil boss trope, or even that you are the boss and your line of work just doesn’t work that way), time to change that up. Stop focusing on what you can’t do, and look for what you can do.
Spoiler: you can have a blast just trying things out!
That doesn’t mean you should quit your job, or replace your PC with a Playstation, or whatever.
It just means that you deserve comfort and happiness while working, and around your work!
Need a helping hand getting started?
- Create your own self-care plan to avoid burnout
- ⏳ Complete your first “time audit”
- ❣️ Zip through to self-awareness with bullet-journalling
Like A Boss
And pssst, if you’re a business-owner who is thinking “but I have quotas to meet”, your customers are going to love your staff being happier, and will enjoy their interactions with your company much more. Or if your staff aren’t customer-facing, then still, they’ll work better when they enjoy doing it. This isn’t rocket science, but all too many companies give a cursory nod to it before proceeding to ignore it for the rest of the life of the company.
So where do you start, if you’re in those particular shoes?
Read on…
*straightens tie because this is the serious bit* —just kidding, I’m wearing my comfiest dress and fluffy-lined slipper-socks. But that makes this absolutely no less serious:
The Institute for Health and Productivity Management (IHPM) and WorkPlace Wellness Alliance (WPWA) might be a good place to get you on the right track!
❝IHPM/WPWA is a global nonprofit enterprise devoted to establishing the full economic value of employee health as a business asset—a neglected investment in the increased productivity of human capital.
IHPM helps employers identify the full economic cost impact of employee health issues on business performance, design and implement the best programs to reduce this impact by improving functional health and productivity, and measure the success of their efforts in financial terms.❞
The Institute for Health and Productivity Management
They offer courses and consultations, but they also have free downloadables and videos, which are awesome and in many cases may already be enough to seriously improve things for your business already:
Check Out IHPM’s Resources Here!
What can you do to make your working life better for you? We’d love to hear about any changes you make inspired by Brittany’s work—you can always just hit reply, and we’re always glad to hear from you!
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Eat Real Food and Love It – by Kari McCloskey
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Half the battle of healthy eating is enjoying it—because once you do, it’s no longer a battle!
So that’s what this book focuses on. The author, a Registered Nutritionist, does indeed dispense nutritional advice, as you might expect, but also bids us pay attention to what nature’s foods do for us, and notice what less healthy foods take from us. She goes through these category by category, quite comprehensively, before moving on to the more “active” parts of the book.
There’s a lot about training our senses, and about taking a holistic approach to eating, as well as renewing not just our relationship with food, but also various other parts of our life that are inextricably linked to it (from sleep and exercise, to social considerations, and medical issues that healthier eating will help us to avoid or at least tame).
The style is… Joyful. Much like this reviewer, the author loves food, and it shows. She also (again much like this reviewer) cares deeply about the impact food has on her, and (for a third time: like this reviewer!) wants to share that joy and care with the reader. The priority is readability and helpfulness; scientific references are still provided wherever appropriate, though.
Bottom line: if you’d like to improve your eating but it seems like a chore, this book can help turn it into an excitingly enjoyable journey instead.
Click here to check out Eat Real Food And Love It, and eat real food and love it!
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What you need to know about FLiRT, an emerging group of COVID-19 variants
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What you need to know
- COVID-19 wastewater levels are currently low, but a recent group of variants called FLiRT is making headlines.
- KP.2 is one of several FLiRT variants, and early lab tests suggest that it’s more infectious than JN.1.
- Getting infected with any COVID-19 variant can cause severe illness, heart problems, and death.
KP.2, a new COVID-19 variant, is now dominant in the United States. Lab tests suggest that it may be more infectious than JN.1, the variant that was dominant earlier this year.
Fortunately, there’s good news: Current wastewater data shows that COVID-19 infection rates are low. Still, experts are closely watching KP.2 to see if it will lead to an uptick in infections.
Read on to learn more about KP.2 and how to stay informed about COVID-19 cases in your area.
Where can I find data on COVID-19 cases in my area?
Hospitals are no longer required to report COVID-19 hospital admissions or hospital capacity to the Department of Health and Human Services. However, wastewater-based epidemiology (WBE) estimates the number of COVID-19 infections in a community based on the amount of COVID-19 viral particles detected in local wastewater.
View this map of wastewater data from the CDC to visualize COVID-19 infection rates throughout the U.S., or look up COVID-19 wastewater trends in your state.
What do we know so far about the new variant?
Early lab tests suggest that KP.2—one of a group of emerging variants called FLiRT—is similar to the previously dominant variant, JN.1, but it may be more infectious. If you had JN.1, you may still get reinfected with KP.2, especially if it’s been several months or longer since your last COVID-19 infection.
A CDC spokesperson said they have no reason to believe that KP.2 causes more severe illness than other variants. Experts are closely watching KP.2 to see if it will lead to an uptick in COVID-19 cases.
How can I protect myself from COVID-19 variants?
Staying up to date on COVID-19 vaccines reduces your risk of severe illness, long COVID, heart problems, and death. The CDC recommends that people 65 and older and immunocompromised people receive an additional dose of the updated COVID-19 vaccine this spring.
Wearing a high-quality, well-fitting mask reduces your risk of contracting COVID-19 and spreading it to others. At indoor gatherings, improving ventilation by opening doors and windows, using high-efficiency particulate air (HEPA) filters, and building your own Corsi-Rosenthal box can also reduce the spread of COVID-19.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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Visceral Belly Fat & How To Lose It
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Visceral Belly Fat & How To Lose It
We’ve talked before about how waist circumference is a much more useful indicator of metabolic health than BMI.
So, let’s say you’ve a bit more around the middle than you’d like, but it stubbornly stays there. What’s going on underneath what you can see, why is it going on, and how can you get it to change?
What is visceral fat?
First, let’s talk about subcutaneous fat. That’s the fat directly under your skin. Women usually have more than men, and that’s perfectly healthy (up to a point); it’s supposed to be that way. We (women) will tend to accumulate this mostly in places such as our breasts, hips, and butt, and work outwards from there. Men will tend to put it on more to the belly and face.
Side-note: if you’re undergoing (untreated) menopause, the changes in your hormone levels will tend to result in more subcutaneous fat to the belly and face too. That’s normal, and/but normal is not always good, and treatment options are great (with hormone replacement therapy, HRT, topping the list).
Visceral fat (also called visceral adipose tissue), on the other hand, is the fat of the viscera—the internal organs of the abdomen.
So, this is fat that goes under your abdominal muscles—you can’t squeeze this (directly).
So what can we do?
Famously “you can’t do spot reduction” (lose fat from a particular part of your body by focusing exercises on that area), but that’s about subcutaneous fat. There are things you can do that will reduce your visceral fat in particular.
Some of these advices you may think “that’s just good advice for losing fat in general” and it is, yes. But these are things that have the biggest impact on visceral fat.
Cut alcohol use
This is the biggie. By numerous mechanisms, some of which we’ve talked about before, alcohol causes weight gain in general yes, but especially for visceral fat.
Get better sleep
You might think that hitting the gym is most important, but this one ranks higher. Yes, you can trim visceral fat without leaving your bed (and even without getting athletic in bed, for that matter). Not convinced?
- Here’s a study of 101 people looking at sleep quality and abdominal adiposity
- Oh, and here’s a meta-analysis with 56,000 people (finding the same thing), in case that one study didn’t convince you.
So, the verdict is clear: you snooze, you lose (visceral fat)!
Tweak your diet
You don’t have to do a complete overhaul (unless you want to), but a few changes can make a big difference, especially:
- Getting more fiber (this is the biggie when it comes to diet)
- Eating less sugar (not really a surprise, but relevant to mention)
- Eat whole foods (skip the highly processed stuff)
If you’d like to learn more and enjoy videos, here’s an informative one to get you going!
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